Page 146 - booklet draft

vii) COMMISSIONING OF SCREW AIR COMPRESSORs

Two nos. of M/s Frank Technologies Pvt. Ltd, Coimbatore make Screw
Air Compressors, model no. Mute 20/13/Base, supplied by M/s Shansen
Enterprises, Coimbatore were procured under M&P programme. Each

compressor has maximum working pressure of 13kg/cm and sound
2
levels up to 75dB@1meter. Till date shed was using compressed air

generated by Reciprocating (piston) type compressors to
pneumatically operated hand held tools used in M6 section and for
carrying out minor schedules in inspection bays. Screw air

compressors are an energy efficient option as they generate less heat
compared to normal air compressors due to which less water is

created during air compression, withstand significant temperature
swings, these compressors have built in noise dampening technology
hence operate quietly and produce no noise during operation

thereby reducing the sound pollution in the shed premises. Rotary
screw air compressors have less parts requiring regular maintenance

thereby making maintenance a little easier.

viii) REPLACEMENT OF TBU/PBU WITH CONVENTIONAL BRAKE

RIGGING IN WAG-9 LOCOs

RDSO issued instructions for Conversion of brake rigging of WAG9/9H
locos with TBU/PBU type brake rigging to conventional brake rigging.
Till date 79 locomotives are replaced with conventional brake rigging.